Pump.



No. 889,430. PATENTED JUNE 2;, 1903.

- L. BENSON &. W. ABRAMS.

PUMP.

APPLICATION FILED DEC. 28, 1907- 66 2 SHEETS-SHEET 1.

2% 2 WITN SSES. 5 INVENTORS 45 7 q LawreqrsaBgssuq wanace Abrams. 6

No. 889,430. I PATERTED JUNE 2, 190s.

I L. BENSON & W. ABRAMS.

PUMP.

APPLICATION FILED mom, 1907.

I INVENTORS 'Law'x'Eqca Beqs 66 2 SHEETS-SHEET 2 U 6] Wallace Kb'r msj ATTORNEYS RS co.. wnsmumon, n. c.

LAWRENCE BENSON AND WALLACE ABRAMS, OF NEWARK, NEW JERSEY.

PUMP.

. Specification of Letters Patent.

Patented June 2, 1908.

Application filed December 28, 1907. Serial No. 408,343.

To all whom it may concern.-

. Be it known that we, LAWRENCE BENSON and WVALLACE ABRAMS, citizens of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Pumps; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification.

Our present invention relates, generally, to improvements in pumps; and, this invention has reference, more particularly, to a novel pump, which is especially adapted for use with the systems of piping through which such liquids as beer, or the like, are conducted, and is for the purpose of forcing a cleaning compound or liquid through the pipes for cleansing the same.

Our invention has for its principal object to provide a novel pump for cleaning purposes of the general character herein set forth, which is very simple in its construction, is easily manipulated, and is most efficient in its operations.

A further object of this invention is to provide a pump in which the plunger or piston is provided with an adjustable ,or regulatable means which can be set by the operator, so that the liquid can be continuously forced through the pump-casing or cylinder in either direction, as may be desired 3 or, the regulating means may be set down tight upon the plunger or piston, so that the liquid will be sucked into the pump-casing 'or cylinder, at the one end of the same and during the returnstroke of the plunger or piston again forced from the cylinder at thesame end.

Other objects of this invention not at this time more particularly specified will be clearly understood from the following detailed description of the same.

WVith the various objects of our present invention in view, the said invention consists, primarily, in the novel pump hereinafter set forth; and the invention consists, furthermore, in the novel arrangements and combinations of the various devices and parts, as well as in the details of the construction of the same, all of which will be more fully described in the following specification, and then finally embodied in the clauses of the claims which are appended to and which v ployed in connection therewith being shown in elevation, said view being made on an enlarged scale. Fig. 3 is a detail vertical section of the respective upper and lower portions of the pump, said. view being made on the-same scale as Fig. 1, and showing the adjustable or regulatable parts set, so that the liquid will be forced from and through the pump in an opposite direction from that indicated by the arrows in said Fig. 1. Fig. 4 is a sectional representation of the same portions of the pump, similar to that shown in said Fig. 3, but the adjustable or regulatable parts being set so that, during the reciprocatory movements of the plunger or piston, the liquid will be sucked into the end of the pump-casing or cylinder and then again forced out of the same end of the pumpcasing. or cylinder. Fig. 5 is a horizontal section, taken on line 55 in said Fig. 1 of the drawings; Fig. 6 is a similar section, taken on line 66 in Fig. 1; and Fig. 7 is a horizontal section, takenon line 77 in said Fig. 1, all of said sections being made on an enlarged scale.

Similar characters of reference are employed in all of the above described views, to indicate corresponding parts. I

Referring now to the said drawings, the reference-character 1 indicates a complete pump, showing one embodiment of our present invention, the same comprising a suitable pump-casing or cylinder 2, which is prefer-' ably provided. at its lower and upper ends with the externally screw-threaded portions 3 and 4. The lower screw-threaded end-portion 3 of the cylinder is suitably screwed into an internally screw-threaded receiving socket 6 formed in a suitably shaped base, as 5. This base or foot-piece is usually provided with another internally screw-threaded receiving socket 7, into which is screwed the lower and externally screw-threaded portion 9 of a tubular member or cylinder 8, said cylinder being provided at the top with a screw-portion 10 for the closing of the upper end of said cylinder 8 by means of a suitable cap, as 11: The said tubular member or cylinder 8 is provided in its side with an opening 12, and 13 indicates a piece of piping or nozzle, suitably secured upon the outside of the cylinder 8, in any well-known manner, over said opening 12. The said piping or nozzle 13 is for the purpose of attaching thereto a flexible or other suitable connection, so as to establish a communication between said cylinder 8 and one opening or end of the system of piping which is to be cleansed. Communication is established between the pump-casing or cylinder 2 and said tubular member or casing 8 by means of a duct 14 which has been suitably formed in the base or foot-piece 5, as will be clearly understood from an inspection of Fig. 1 of the drawings.

Suitably screwed upon the upper screwthreaded portion 4 of the cylinder 2 is a suit able cap or closing member 15, said member being made with an opening 16, and a stuffing-box 17 provided with a suitable packing 18. The cap or closing member 15 is also provided with an opening, as 19, with which is suitably connected a short piece of piping or nipple, as 20, for the attachment thereto of a flexible or other suitable connection, so as to establish a communication between the upper portion of the cylinder 2 and another opening or end of the same system of piping which is to be cleaned. Movably arranged in said stuHing-box 17, so as to extend through the opening 16 and into the interior of the pump-casing or cylinder 2 is a tubular plunger or piston-operating stem 21, said piston-stem being provided upon its upper end-portion with a screw-thread 22, a suit able handle 23 being arranged and secured upon said end-portion by means of suitable nuts 24 and 25, or other suitable fastening means, as will be clearly evident. Screwed upon that portion of the stem 21 which proj ects above the nut 24 is a screw-cap 26 having in its upper closed end an opening 27, as shown in Fig. 1 of the drawings, and for the purposes to be presently described.

Slidably disposed within the pump-casing or cylinder 2 is a plunger or piston 28 which is provided in its cylindrical surface with an annular receiving portion 29 in which is arranged any suitable packing 30 in frictional sliding contact with the inner surface-portions of the casing or cylinder Extending upwardly from said plunger or piston 28 are uprights or posts 31 which are connected by -ble 54.

means of a cross-piece 32, all arranged to provide a substantially yoke-shaped suspension means, as will be evident. The said cross-piece 32 is made with an opening 33 and an enlarged and internally screwthreaded receiving socket 34 into which the lower and screw-threaded end-portion 35 of the tubular piston-stem is screwed, a perforated washer 36 and perforated packingring or gasket 37 being arranged in said socket 34 beneath the edge of said end of the piston-stem, substantially as illustrated in Figs. 1, 3 and 4 of the drawings. The plunger or piston 28 is made with an opening 38, formed at its upper end with a valve-seat 39 and at its lower end with a valve-seat 40. Loosely and slidably disposed in said opening 38 is a plug 41 formed at its upper end with an annular and cone-shaped rim 42, adapted to be seated upon said valve-seat 39, and formed at its lower end with an annular and cone-shaped rim 43, adapted to be seated upon said valve-seat 40. In order that the said valve-plug 41 can be arranged in its operative relation to the plunger or piston 28, the lower portion of the plug which is provided with the cone-sha ed rim 43 is made in the form of a separab e plate or disk 44, formed with a slot 45 and a screw-stud 46, so as to be screwed into a screw-threaded socket 47 in said plug 41 for the purpose of assembling said parts in their operatively connected relation.

Within the upper tubular portion of the piston-stem 21 is a tubular member or element 48 having a pin 48 extending diametrically across the same, and the said pin having its projecting end-portions extending into and slidably arranged in slots or openings 49 suitably disposed in the opposite sides of the piston-stem. The said member or element 48 is internally screw-threaded, as at 50, and screwed into the lower portion of said member or element 48 is the upper screw-threaded portion 52 of a rod 51. This rod 51 extends in a downward direction through the interior of the tubular piston-stem 2]., through the openings or holes in the washer 36 and the packing-ring or gasket 37, and through the opening 33 in the cross-piece or bar 32. The lower end-portion of said rod 51 which extends below the under surface of said cross-piece or bar 32 is provided with a screw-threaded part 53 and is screwed into the upper end of a tubular member or thim- The lower open end of said member or thimble is also provided with a screwthreaded part, as 55, and connected therewith, in any suitable manner, is a socketed nut or member 56, the latter being provided in its closed end with a suitable hole 57. Loosely arranged in said hole 57, and retained in place by means of a head or enlargement 59 is a screw or pin 58, the lower and preferably screw-threaded end-portion relation, as will be clearly evident from an inspection of the several figures of the drawings. The valve-plug 41, as will be seen more particularly from an inspection of Figs. 2 and 7, is made with longitudinally extending rib-like members, as 61, which, with the interior surface-portions of the opening 38 in the plunger or piston form suitable ducts through which the liquid can flow, at certain times, as will be hereinafter more fully set forth.

Screwed into the upper and internally screw-threaded portion of the previously mentioned member or element 48 is another screw-threaded stem or rod 62, said stem being provided with an annular or other suitably formed shoulder or offset 63 arranged directly against the under surface of the closed end of the screw-cap 26. The stem or rod 62 also has a part 64 which extends into and through the opening 27 in the closed end of the screw-cap 26, a pin 65 which is connected with said part 64 and has its opposite and projecting ends bearing lightly upon the surface of said closed end of the screw-cap 26, retaining said parts in their operatively assembled relations, against displacement, but not interfering with the turning of said screw-threaded stem or rod 62, as will be clearly evident. That the said stem or rod may be turned, from right to left and back again from left to right, the stem or rod is provided upon its upper end with a suitable thumb-nut 66, or other finger-piece.

Having described the general arrangement and combinations of the several de vices and parts, to provide a pump embody ing the principal features of our present invention, we will now briefly setforth the manner of setting the valve-plug, and the manner of operating the pump for variously forcing the liquid into, through, and from the pump-casing or cylinder.

When the parts have been set or adjusted in their relative positions indicated in Fig. 1 of the drawings, and when a reciprocatory movement of the piston-stem 21 is produced by taking hold of the ends of the handle 23, and moving the same back and forth,

, and thereby producing also a reciprocatory movement of the plunger or piston, the coneshaped rim 43 of the valve-plug 41 will become firmly seated upon the lower valveseat 40, during the downward movement of the plunger or piston. The result will be, that any liquid contained in the pump-casing or cylinder 2 will be driven in front of the said plunger or piston 28, from said cylinder 2, through the duct 14, and into the cylinder 8 in which is contained the cleansing composition. The liquid is forced from said cylinder 8 through the outlet 13, and then into and through the system of piping which is to be cleansed and then back again into the cylinder 2 through the pipe or nipple 20, all

as indicated by the arrows shownv in said.

Fig. 1. The adjustment of the parts is such that during the upward stroke or movement of the piston-stem and piston, the valve-plug 41 will assume the position indicated in Figs. 1 and 2 of the drawings, and the plunger or piston can be moved upwardly in the cylinder 2 without any effect upon the liquid. The valve-plug is thus moved alternately from its closing relation with the plunger or piston into its opened relation therewith, so that the plunger becomes operative only during its downward stroke, and a continuous flow of the liquid will be produced through the said cylinder 2 in the one direction only indicated by the arrows in said Fig. 1.

When it is necessary and desirable to reverse the direction of the flow of liquid through the system of piping, and consequently through the pump-casing or cylinder all that is necessary is, by means of the fingerpiece 66 to turn the screw-stem 62 from left to right. This movement of said screw-stem will produce a downward movement of the tubular member or element 48 directly within the piston-stem 21 and thereby causes a slight downward movement of the rod 51 within the stem 21, so as to bring the parts connected with and suspended from the lower end-portion of rod 21 into the adjusted positions indicated in Fig. 3 of the drawings. The result of this will be that when the plunger or piston 28 moves in an upward direction, then the cone-shaped rim 42 closes down upon the valve-seat 39 of said plunger or piston and during the upward stroke of said plunger or piston the liquid will be forced from the cylinder 2 through the nipple 20 into and through the system of piping which is to be cleansed, to and into the cylinder 8, and then through the duct and passageway 14 into the lower end of the pumpcasing or cylinder 2. The adjusted arrangement of the parts, as will be seen from said Fig. 2 of the drawings, is such that during the downward or returning stroke of the piston or plunger, the ducts of the said piston or plunger will remain open so that there can be no action of the piston. and plunger upon the liquid Within the cylinder 2 during such return movement of the said piston.

The construction of the parts is such that the various adjustments can be quickly made so that, at will of the operator and as necessity may demand, the flow of the cleansing liquid through the system of piping which is being cleansed can be easily and quickly alternated so as to obtain the best results.

In some instances, it may be desired to use the pump in the manner of the usual suction pump. Then this is desired, the parts are brought into their adjusted relations, indicated in Fig. 4 of the drawings, and the plug 41 is immovably held in the position shown, by having moved the rod 51 in a still further downward direction, so as to bring the nut 56 tightly down upon the upper surface of the said plug 41. It will thus be evident, from an inspection of said Fig. 4 of the drawings, that when the piston is moved in an upward direction, and the valve-plug being fixed, a suction is produced for sucking the liquid into the pumpcasing; and, that during the return stroke of the piston the liquid will be forced from the said cylinder 2 and from the same end into which it had been previously sucked. By again turning the screw-rod 62 in the direction from right to left, the proper adjustment can be made so as to again bring the valveplug 61 into anyone of the adjusted positions indicated in said Figs. 3 and 4 of the drawings.

From the foregoin description of our present invention, it will be seen that we have devised a simple and effectively operating pump adapted for the purposes herein above set forth; and one, in which the liquid can be forced in a continuous stream through the pump-casing in either direction, or can be sucked into one end thereof and again forced out of the end according to the purposes to which the pump is to be placed.

We are fully aware, that changes may be made in the general arrangements and combinations of the devices and parts, as well as in the details of the construction of the same, without departing from the scope of our present invention, as defined in the claims which are appended to this specification. Hence, we do not limit our invention to the exact combinations and arrangements of the devices and parts as described in the foregoing specification, and as illustrated in the accompanying drawings, nor do we confine ourselves to the exact details of the construction of any of the said parts.

1. A pump comprising a cylinder, a plunger having an opening provided with an upper and lower valve-seat, and a valve-plug movably arranged in said opening, and means for seating said valve-plug upon either valveseat, and mechanism for rigidly setting said valve-plug in its closing relation with the opening in said plunger, substan 1 tially as and for the purposes set forth.

2. A pump comprising a cylinder, a plunger having an opening provided with an upper and lower valve-seat, a valve-plug movably arranged in said opening, a tubular stem connected with said plunger and extending from said cylinder, said stem being provided with means for producing reciprocatory justing devices arranged within and extending from said stem, for seating the valveplug upon either valve-seat, and means connected with said adjusting devices for rigidly seating said valve-plug in its closing relation with the opening in said plunger, substantially as and for the purposes set forth.

3. A pump comprising a cylinder, a plunger having an opening provided with an upper and lower valve-seat, a valve-plug movably arranged in said opening, a tubular stem connected with said plunger, means on said stem for producing reciprocatory movements of the stem and plunger, a tubular and internally screw-threaded member slidably arranged in the upper portion of said stem, a screw-threaded rod for causing the movement of said sliding member, and a rod connected with said member and extending through said tubular stem, and a means of connection between said rod and the valveplug for seating the latter u on either valveseat, and means for rigid y setting said valve-plug in the closing relation with the opening in said plunger, substantially as and for the purposes set forth.

4. A pump comprising a cylinder, a plunger having an opening provided with an upper and a lower valve-seat, a valve-plug movably arranged in said opening, uprights upon said plunger, and a cross-piece oining the said uprights, said cross-piece being provided with an opening, a tubular stem connected with said cross-piece, means on said stem for producing reciprocatory movements of the stem and plunger, a rod movably arranged within said stem, said rod extending at its lower end-portion from said cross-piece, and a means of connection between the lower endportion of the rod and the valve-plug for seating the valveplug upon either valveseat, and means for rigidly setting said valve' plug in its closing relation with the opening in said plunger, substantially as and for the purposes set forth.

5. A pump comprising a cylinder, a plunger having an opening provided with an upper and a lowervalve-seat, a valve-plug movably arranged in said opening, uprights upon said plunger, and a cross-piece joining the said uprights, said cross-piece being provided with an opening, a tubular stem connected with said cross-piece, means on said stem for producing reciprocatory movements of the stem and plunger, a tubular and internally screw-threaded member slidably arranged in the upper portion of said stem, a screw-threaded rod for causing the movement of said sliding member, a second. rod connected with said member and extending through said tubular stem, said rod extending at its lower end-portion from said crosspiece, and a means of connection between movements of the stem and plunger, and adthe lower end-portion of the rod and the valve-plug for seating the valve-plug upon either valve-seat, and means for rigidly setting said valve-plug in its closing relation with the opening in said plunger, substantially as and for the purposes set forth.

6. A pump comprising a cylinder, a plunger having an opening provided with an upper and a lower valve-seat, a valve-plug movably arranged in said opening, uprights upon said plunger, and a cross-piece joining the said uprights, said cross-piece being provided with an opening, a tubular stem connected with said cross-piece, means on said stem for producing reciprocatory movements of the stem and plunger, a rod movably arranged within said stem, said rod extending at its lower end-portion from said cross-piece, a thimble upon said end-portion of the rod, -a socketed nut connected with said thimble, and a means of connection between said nut and the' valve-plug, said means being movably arranged for seating the valve-plug upon either valve-seat, and means for rigidly setting said valve-plug in its closing relation with the opening in said plunger, substantially as and for the purposes set forth.

7. A pump comprising a cylinder, a plunger having an opening provided with an upper and a lower valve-seat, avalve-plug movably arranged in said opening, uprights upon said plunger, and a cross-piece oining the said uprights, said cross-piece being provided with an opening, a tubular stem connected with said cross-piece, means on said stem for producing reciprocatory movements of the stem and plunger, a rod movably arranged within said stein, said rod extending at its lower end-portion from said cross-piece, a thimble upon said end-portion of the rod, a socketed nut connected with said thimble, said nut being provided with a hole, a screw extending from said valve-plug through the hole in said nut, and a head on said screw, said head being movably arranged in said socketed nut for seating the valve-plug upon either valve-seat, and means for rigidly set ting said valve-plug in its closing relation with the openingin said plunger, substantially as and for the purposes set forth.

8. A pump comprising a cylinder, a plunger having an opening provided with an upper and a lower valve-seat, a valve-plug movably arranged in said opening, uprights upon said plunger, and a cross-piece joining the said uprights, said cross-piece being provided with an opening, a tubular stem connected with said cross-piece, means on said stem for producing reciprocatory movements of the stem and plunger, a tubular and internally screw-threaded member slidably arranged in the upper portion of said stem, a screw-threaded rod for causing the movement of said sliding member, a second rod connected with said member and extending at its lower end-portion from said crosspiece, a thimble upon said end-portion of the rod, a socketed nut connected with said thimble, and a means of connection between said nut and the valve-plug, said means being movably arranged for seating the valveplug upon either valve-seat, and means for rigidly setting said valve-plug in its closing relation with the opening in said plunger, substantially as and for the purposes set forth.

9. A pump comprising a cylinder, a plunger having an opening provided with an upper and a lower valve-seat, a valve-plug movably arranged in said opening, uprights upon said plunger, and a cross-piece joining the said uprights, said cross-piece being provided with an opening, a tubular stem connected with said cross-piece, means on said stem for producing reciprocatory movements of the stem and plunger, a tubular and internally screw-threaded member slidably ar ranged in the upper portion of said stem, a screw-threaded rod for causing the movement of said sliding member, a second rod connected with said member and extending at its lower end-portion from said cross-piece, a thimble upon said end-portion of the rod, a socketed nut connected with said thimble, said nut being provided with a hole, a screw extending from said valve-plug through the hole in said nut, and a head on said screw, said head being movably arranged in said socketed nut for seating the valve-plug upon either valve-seat, and means for rigidly setting said valve-plug in its closing relation with the opening in said plunger, substantially as and for the purposes being set forth.

10. In a pump, the combination, with a foot-piece, of a pump casing and a cylinder both connected with said foot-piece, a means of communication between the pump-casing and said cylinder, a plunger in said casing, said plunger having an opening provided with an upper and a lower Valve-seat, a valve-plug movably arranged in said opening, uprights upon said plunger, and a cross-piece joining the said uprights, said cross-piece being provided with an opening, a tubular stem connected with said cross-piece, means on said stem for producing reciprocatory movements of the stem and plunger, a tubular and internally screw-threaded member slidably arranged in the upper portion of said stem, a screw-threaded rod for causing the movement of said sliding member, a second rod connected with said member and extending at its lower end-portion from said cross-piece, a thimble upon said end-portion of the rod, a socketed nut connected with said thimble, said nut beingprovided withia hole, a screw extending from said valve-plug through the hole in said nut, and a head on said screw,

said head being inovably arranged in said set forth above We have hereunto set our sooketed nut for seating the valve-plug upon hands this 21st day of December, 1907.

either Valve-seat, and means for rigidly set- I LAWRENCE BENSON.

ting said valve-plug in its closing relation WALLACE ABRAMS. j; 5 with the opening in said plunger, substan- WVitnesses:

tially as and for the purposes set forth. FREDK. C. FRAENTZEL,

In testimony that We claim the invention GEORGE D. RICHARDS. 

